| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8016923 | Materials Letters | 2016 | 4 Pages |
Abstract
Mesoporous microrods (MPMRs) of α-Fe2O3 were successfully synthesized via a facile and reliable two-step route by using pre-synthesized FeC2O4·2H2O as sacrificial template. The prepared samples were characterized by XRD, FESEM, TEM, and N2 adsorption-desorption, respectively. Results indicated that during the thermal decomposition process, the FeC2O4·2H2O precursor can pass its morphology on to the α-Fe2O3 product, meanwhile, a large amount of pores with the dominant size around 5 nm were created in the α-Fe2O3 microrods. The BET surface area of the α-Fe2O3 is 122.7 m2/g. The sensor fabricated with as-prepared α-Fe2O3 MPMRs exhibited impressive gas-sensing characteristics towards triethylamine (TEA), such as relativity low optimum operating temperature (275 °C), high response, and good linearity in a wide gas concentration range (20-300 ppm), implying its promising application in detecting TEA.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Guang Sun, Honglin Chen, Yanwei Li, Guangzhou Ma, Saisai Zhang, Tiekun Jia, Jianliang Cao, Xiaodong Wang, Hari Bala, Zhanying Zhang,